JEE Main 2002 Chemistry question

In mixture A and B component show -ve deviation as

(1)
(2)Correct
(3)A - B interaction is weaker than A - A and B - B interaction
(4)A - B interaction is stronger than A - A and B - B interactionCorrect

Answer: (2),(4)

Solution

Negative deviation from Raoult's law occurs when A–B attractions are stronger than A–A and B–B attractions, so molecules escape less readily (lower vapour pressure). The consequences are

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Question ID VK-037949